Finding the Fourth Proportional to 7,718,465.92, 10,651,838.56 and 4,280,502.08
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Solution
The fourth proportional to 7,718,465.92, 10,651,838.56 and 4,280,502.08 is: 5,907,290.07
Step by Step Solution
- Step 1: Write the proportion equation
7,718,465.92 : 10,651,838.56 = 4,280,502.08 : x - Step 2: Convert to fraction form
7,718,465.92/10,651,838.56 = 4,280,502.08/x - Step 3: Cross multiply
7,718,465.92x = 10,651,838.56 × 4,280,502.08 - Step 4: Simplify right side
7,718,465.92x = 45,595,217,111,904.21 - Step 5: Solve for x
x = 45,595,217,111,904.21/7,718,465.92 - Step 6: Final answer
x = 5,907,290.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.